package com.cn.Utils;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.ApplicationEvent;

/**
 * Created by Administrator on 2017/6/9.
 */
public class SpringUtil implements ApplicationContextAware {

    private static ApplicationContext applicationContext = null;


    @Override

    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {

        if (SpringUtil.applicationContext == null) {

            SpringUtil.applicationContext = applicationContext;

        }

       /* System.out.println("---------------------------------------------------------------------");

        System.out.println("---------------------------------------------------------------------");

        System.out.println("---------------simple.plugin.spring.SpringUtil------------------------------------------------------");

        System.out.println("========ApplicationContext配置成功,在普通类可以通过调用SpringUtils.getAppContext()获取applicationContext对象,applicationContext=" + SpringUtil.applicationContext + "========");

        System.out.println("---------------------------------------------------------------------");*/

    }

    public static void publishEvent(ApplicationEvent var1){
        getApplicationContext().publishEvent(var1);
    }

    //获取applicationContext

    public static ApplicationContext getApplicationContext() {

        return applicationContext;

    }


    //通过name获取 Bean.

    public static Object getBean(String name) {

        return getApplicationContext().getBean(name);

    }


    //通过class获取Bean.

    public static <T> T getBean(Class<T> clazz) {

        return getApplicationContext().getBean(clazz);

    }


    //通过name,以及Clazz返回指定的Bean

    public static <T> T getBean(String name, Class<T> clazz) {

        return getApplicationContext().getBean(name, clazz);

    }

}

